Channel 4 has been deluged with complaints about The 15 Stone Babies, which highlighted the lives of adults who dress and act like toddlers for pleasure.

Viewers were horrified by fetishist Justin, 37, who enjoyed a “father-daughter” relationship with his lover Kat, 27. She liked to pretend she was six but her “daddy” admitted he would prefer her to act two or three.

When asked what excited him about the practice, Justin said: “I’m interested in child-like qualities of wonder, not children.”

But furious viewers branded the programme-makers “sick”.

Corrie star Michelle Keegan, 25, tweeted: “Literally channel4 you have just made a programme full of pedos. #welldone #applause.”

Meanwhile one viewer said the show reminded her of the David Walliams character on Little Britain who liked drinking breast milk.

But the funnyman, 41, responded: “I was just watching but had to turn it off. Disturbing...!”

Thursday’s show also featured couple Derek and Maxine who run an adult “nursery” near Portsmouth.

It featured adults dressing up as babies, having their nappies changed and being cared for as infants.

Defending his lifestyle, Derek said: “As soon as you mention adult baby, they all think it’s something to do with children and it’s, you know, paedophiles. We don’t want to be with children. We want to be the child.”

A Channel 4 spokesman said: “The film was an observational documentary following adults who sometimes dress and act as babies. The programme was appropriately scheduled at 10pm and we’ve received a small number of complaints, 11 in total.”